Noisy Tool Batteries?
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- Опубликовано: 5 апр 2025
- Today we're testing some tool batteries to see if they are good for ham radio!
More Info: ceenr.com
Batteries:
👉 4ah Dewalt+USB: geni.us/SQAdFmY
👉 4ah Milwaukee+USB: geni.us/54Y5I
👉 8ah Dewalt - NO USB: geni.us/ciGXHTA
👉 8ah Milwaukee - NO USB: geni.us/mMTaD6
Gear:
👉 PD Trigger Cable - USB-C to 12VDC: geni.us/aRwMU
👉 Simple Multi-Meter: geni.us/RursYP
👉 Makerhawk Battery Tester: geni.us/cXcEI
👉 Screwdriver Set: geni.us/OilK
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Let's replace that MOSFET on the next episode of Nuggets, and show Jeem how it's done. You'll require some disassembly of the plastic parts and a hot tray underneath to prewarm the PCB. Just a thought. 73 OM
Ah, the prewarmer is something I don't have... I wonder if its even that sophisticated...
@@temporarilyoffline Hot plate grill from dollar store will do the job. Just label it for solder ONLY and NO FOOD. (lead)
@@WECB640that takes all the fun out of it! 😅
There are so many possible sources for noise these days, thanks for checking these out. Sorry you lost a piece of gear, maybe a fix-it video in the future? :) LCARA Ham Radio
There is always something to do in this hobby!
I have been using buck converters for a while now for E comms, love them. Great vid
Do you have a quiet one? I've only heard they are bad, but don't have one to prove it.
@temporarilyoffline using them for UHF and VHF very quiet. I haven't used it on HF .
@StanleyPugh good to hear!
I did this too.
"Power Wheel adaptor" is a good search term for a power tool battery connector, usually with a switch and a inline blade fuse holder.
Those are the ones people tell me are noisy.
@@temporarilyoffline !? There is no active circuitry. Just blade connectors in a plastic housing. For use instead of the crimp connectors you used.
I agree with Hollywood! A future nuggets episode! You can bring in the Pro solder Big Jeeeem for the win! Thanks for the video Steve! 73
Seems like an easy fix!
Steve, one thing you don't want to do, if you have a battery that is designed to put out 18, or 20 volts, and is made up of a number of cells, which is what you have in your video, taping in to get a voltage in this case, that the radio will work on, is not the way to proceed, because you are unbalanceing the battery pack, some cells will pull down and others will stay fully charged, which will cause problems when charging, the proper way is to drain the battery at its designed capacity and use a converter for the desired output system stays balanced 😊 great to see you tinkering have a fun day, missed you at Quartfest this year, sorry was buzy working on a neighbors solar system, maybe next year, Dave AI7VS
100% Agreed Dave! I'm sure the USB taps are "USB on a chip" and are tapped in properly... I kind of suspect that making the taps is going to work the way you and I think it works... but Dewalt (et al) make these batteries with these taps on them and either they did it right... or not ;-) I'm wondering if these are voltage taps with proper boost/buck or if these are actually BMS taps and the BMS is actually in the separate charger. Ultimately, there are cheaper 8ah batteries for portable radio use.
@@temporarilyoffline So what is it? You stand by your (poor) suggestion to tap various cells or agree with AI7VS. If you are not sure of the purpose of the taps or the charge method used to charge the battery then please do not make speculative content. These batteries are capable of causing great damage (fire risk) when mistreated
I use 12v2AH Dewalt batteries for my uSDX+ with a simple adapter cable I made up using two crimp on spade connectors that simply jam into the positive and negative terminals on the pack. One battery will last for many hours with that small draw that the little radio has.
It sure will!
Replace the mosfet and fix any burnt traces? For funzies?
Its on the list! The list grows ever-more!
Ah, poor battery tester, looking forward to the teardown video! Thanks for opening those packs and showing the cells, btw! "Batteries" are quiet, it's voltage regulation that's noisy.
I'm no audiophile, but with supercapacitors getting cheap now, I've been playing with the idea of one of those setups they use with a battery of lithium cells feeding a capacitor bank, which feeds clean power out. I've seen a few youtube videos on building them, and there are a bunch of supercap power filters on aliexpress. They also have those hybrid capacitor/lithium cells that are supposed to be safer than either, hmm. AHCR-S04R0S as an example on Mouser, 4V nominal 5A continuous, 25A for a little while if you needed it.
100% agree. This battery has the USB boost/buck converter which could have been noisy, and I know a lot of folks use those beefier converters I mentioned in the vid. I'm not ready to pay for one just to prove what they already know though ;-) Re: super caps - have you seen the "car jump start" packs? Its my understand that they are just a bank of charged caps with a high discharge rate. I'm working getting one of those for the ham channel to see if they can power for more than seconds or what.
I use Milwaukee M12 batteries. Not 13.8, but enough to get me 10W on my KX3, I operate QRP so that is fine. The M12s are pretty reasonable right now. A 12V 3A is about $50. They are very small and light too.
I don't know how 12 became 13.8... but here we are.
Great Video! I noticed the high noise level. For content you could make a noise RF finder. Just a suggestion the RV situation seems like you could use one alot more. Hope you get to 100K 73
Man, I know where the noise is... its me ;-)
I bought an adapter on amazon for my new 20v dewalt batteries to fit my old 18v tools. Interestingly it came with a USBcharger on the side. need to test it.
I have one of those for my circular saw - its just big enough to bump the work and make me think I'm cutting the picnic table at the campsite! I have the USB-Shoe, but USB-A only so no go for me. If you've got the USB-C, give it a whirl!
Great review, nice product, tnx Man!
Thanks VC!
I 3d printed an adapter for my dewalt 6ah batteries which works great. Slips over the batteries themselves
Nice, that's a great idea!
@temporarilyoffline disappointed that you didn't ask for STL. 😜
@@BadgerNNNits up on thingiverse. Its dead simple. Just a frame that takes two spade connectors lol.
Nice testing . I don't have that brand yet for DeWalt. I do have Ryobi tools and battery as well as DeWalt tools and battery even 60V MAX flex Volt . They make adapters to go between the 3 brands . Just makes them longer using adapter . DeWalt had a USB C 100 watt PD type C IN and out with USB A battery topper for 20V/60V battery. it is mostly RFI quit. DCB 094 . It is great and will Charge battery from USB C solar panel or a USB A with A to C cord . Just slower. And can charge from 12V with the PD 12/24V lighter plug adapters. 45W and 65W ones and 100 watt PD ones. Just charges slower or faster according what PD input. 5V to 20V PD input to charge. Yes 5V charge works but very slow and takes all day . 20V PD in and full battery in under a hour for 6 AH . Them DC to DC buck converters can be RFI noisy. Type 31 Ferrite on in and out cleans them up somewhat but still some noise may remain . It varies so much brand to brand. 73
Type 31 is the way
Nothing for Ridgid system. There are so many better options for portable use. It would be interesting to see how long it last during tool use and how many charge cycles it has in it. Let the smoke out of the tester, sounds like a Nuggets episode to fix it.
unless the part number burnt off, it should be a pretty easy two parter - find the part on the first episode, then fix it on the second episode when the part arrives!
The reduced RF gain trick still doesn't let you say that the battery is any quieter than an RV park.
What is your preferred test method?
@@temporarilyoffline Go somewhere quiet, like biking up into those sand dunes again (since you're unlikely to have access to an RF screen room.
I have been using a 24v to 12v converter on a Dewalt battery for qrp radio for a while now with no noise or problems.
Nice! any particular brand name?
Kuerl truck 24v to 12v for cb radios.
Made in China I got an adapter that coverts kids toys to drill batteries and the rest is pure ham radio because I can.
I really want to use my 40 volt lawn mower batteries. But, I have not done any homework on it yet
@@Siskiyous6 40 down to 12! I'm not sure if the noise is on the up or on the down... Let me know what you find out!
I don’t get the point - there are plenty of batteries we can use why use tool batteries that can be pretty expensive in relation to output and capacity.
@@pauls8456 I agree, I looked at the price, size, etc and the only way it makes sense is if you already have a bunch of tool batteries.
99% of the time my tool batteries are doing nothing.
For a DIYer, calendar aging is going to kill a tool battery more than cycling. So using those cycles is putting that expensive battery to use.
For the same reason, I use my 100ah 12-volt lifepo4 camper batteries to power my base radio, rather than buying a power supply
Hello!😊
Hey Scott, good to see you!
Hart?
Looks like they have no Hart ❤️
@@temporarilyoffline thanks anyway
The Password is Car Battery.🤔🤔🙄🙄
@48th34CountFelon how did you guess?
@temporarilyoffline well....all kidding aside, anything but lead acid batteries scare the life outta me. My buddy burned his garage down when a lithium ion went poof! My Go Box has 2 small Mighty Max lead acid batts. Lil heavier but i'm not hiking to Everest.🤓🤓
@48th34CountFelon sorry to hear that. LIon or LiFePO4? What happened?
@temporarilyoffline was a black & decker matrix battery on charge, turned flame thrower.